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nixpkgs/pkgs/development/interpreters/dhall/generate-dhall-directory-package.nix
2021-12-07 13:36:19 +09:00

28 lines
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Nix

{ dhall-nixpkgs, lib, stdenv }:
# This function calls `dhall-to-nixpkgs directory --fixed-output-derivations`
# within a Nix derivation.
#
# This is possible because
# `dhall-to-nixpkgs directory --fixed-output-derivations` will turn remote
# Dhall imports protected with Dhall integrity checksinto fixed-output
# derivations (with the `buildDhallUrl` function), so no unrestricted network
# access is necessary.
lib.makePackageOverridable
( { src
, # The file to import, relative to the root directory
file ? "package.dhall"
, # Set to `true` to generate documentation for the package
document ? false
}:
stdenv.mkDerivation {
name = "dhall-directory-package.nix";
buildCommand = ''
dhall-to-nixpkgs directory --fixed-output-derivations --file "${file}" "${src}" ${if document then "--document" else ""} > $out
'';
nativeBuildInputs = [ dhall-nixpkgs ];
}
)